I remember getting a copy of OS/2 2.0 LA (Limited Availability, a pre-release, test version for IBM clients and resellers) from an acquaintance in late 1991, several months before the regular release (GA - General Availability) version. It was still a tad buggy when it came to running Windows 3 but it was amazing for its time.

Driving an hour to get to MicroCenter on release day was like xmas for my geeky self at the time. lol I ran OS/2 from 1992 until, I think, Mid 1997 when I switched to Windows NT and, later, Windows 2000, before finally settling on OS X in March 2001.